| Niagara Falls to Perth | 3,313.77 mi (5,332.99 km) |
| Niagara Falls to Peterborough | 3,526.10 mi (5,674.70 km) |
| Niagara Falls to Peterhead | 3,349.35 mi (5,390.26 km) |
| Niagara Falls to Peterlee | 3,428.44 mi (5,517.54 km) |
| Niagara Falls to Petersfield | 3,541.21 mi (5,699.03 km) |
| Niagara Falls to Pinner | 3,546.62 mi (5,707.73 km) |
| Niagara Falls to Pitsea | 3,582.39 mi (5,765.31 km) |
| Niagara Falls to Plumstead | 3,568.35 mi (5,742.71 km) |
| Niagara Falls to Plymouth | 3,429.08 mi (5,518.56 km) |
| Niagara Falls to Plympton | 3,432.41 mi (5,523.93 km) |
| Niagara Falls to Plymstock | 3,431.58 mi (5,522.60 km) |
| Niagara Falls to Polegate | 3,593.35 mi (5,782.93 km) |
| Niagara Falls to Ponders End | 3,558.66 mi (5,727.11 km) |
| Niagara Falls to Pont-y-pwl | 3,438.82 mi (5,534.25 km) |
| Niagara Falls to Pontardulais | 3,398.87 mi (5,469.95 km) |
